Stall during car wash on 2004 Hyundai Sonata

Last month the car stalled after leaving car wash. Can be restarted immediately but lacked of power like no gas coming to the engine. Back to normal the next day.This time it stalled right during the car wash. Have to try a few times before it can be started.

Asked by for the 2004 Hyundai Sonata
sounds like moisture is not doing well with you coils or wires.
have a shop check these to see if there is any leakage that is causing the issue.